Talk:Thermic syphon

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[edit] Expansion (+ diagram) required

I know this is only a small article, but it needs some additional explanation for non- 'rail nuts'. For example 'throat sheet', 'crown sheet'...huh? If there was ever an article that needed a diagram, this is it!

EdJogg 20:34, 15 November 2007 (UTC)


I have added some clarification. Biscuittin (talk) 08:43, 3 April 2008 (UTC)

That's much clearer, thanks. But I still think a diagram would be useful, as I'm having difficulty imagining what they look like.
EdJogg (talk) 10:49, 3 April 2008 (UTC)

I've added an external link but it only shows a small part of the thermic syphon. I'll see what else I can find. Biscuittin (talk) 16:40, 3 April 2008 (UTC)

It's a good start, and some unusual pictures. The refs are good finds too. I'm usually surprised at what I can find once I start digging... EdJogg (talk) 23:47, 3 April 2008 (UTC)

[edit] Accuracy

Quote:

"Fresh cold water introduced from the injectors is pre-heated by passage through the syphons before arriving at the crown sheet".

I don't agree with this statement. The feedwater will have been pre-heated (by being mixed with hot water in the boiler barrel) before it gets anywhere near the thermic syphons. The thermic syphons are not feedwater heaters, they are just part of the boiler heating surface. Please discuss. Biscuittin (talk) 08:41, 3 April 2008 (UTC)

[edit] Arch tubes

Locomotives with wide fireboxes often had arch tubes to support the brick arch. I've never seen an arch tube but I think it was a simplified version of a thermic syphon. Does anyone have more information? Biscuittin (talk) 08:48, 3 April 2008 (UTC)